Drawbar construction for mine cars and the like



A. GOLETZ Jul 4, 1933.

DRAWBAR CONSTRUCTION FOR MINE CARS AND THE LIKE Filed Dec. 23, 1929 R OT N E V m I p I "Patented Jul y i i 'I his ini eiition relatesto iriineicjer's aud' outtmgz eiyztyi of' the' iiber 'exten ding .from'on'e endgofthe oer to the tlirouglfione v end; of (the dratiiba'r' assembly,

' 15 cached to each endjoftheeontiriuous drawbar or. key from whiehthe,strainfromgtheiauxthe. auxiliary drawbe'r and the eontinuousthe-custom'aryfrunni iggearBfandhaYing e1 25 thatit'be rerriovedifroiiithe car ar dstraight V p p I I I ened.'fAs heretofore gefrierallyconstructed, "overtheendiofthe sill or'bottom-4,- Applied ",fALBE-RmGOLEIZ,,O EQCRESCEfiTQ 0310,; flissiGNeB ro LPH l LLEE S iV IIiNEiAN DMILL siI PrLYIQ colvrrzm gorrrrrseurterPENNSYLXZ'ANIALAQOBPQBATIQIWOKPEQTNSYLVANIA I If W s oneem e w feeseteleee 1 I cars of similar cfonstruction, andi iore'par the ear v 1ig I p p tieularlyto' ari1improved-dravvbar for ears The inventl'on maybe readily"understood? ofthis type. The termflmine cayr as heref byreference'to the aocompanying-drawinga inafter used-shall heintende'(1*to"iiiclugleears 11 Whic'hfi Q; j. I 9

offthis genera-1 type Whether fused ofrhihes- 'Figurel Sh'OWSjinejfot'mib'iimfiiin Cal with o or other purposes? 'a, drawbarfconstructionmadefm'aceordance- Inearsof thistypeit is the usual prac vwlth mylnventioiiy f "tice to. provide a continuousdrawbar inem-; 'gFigure J 2is 1a-longitudinaldetailfl viewl other andprojecting-beyondeaohaend,this the iW bei g on alar g r s legth iig drawbarfmember'fterrriinating;witliiu *thef]v '.-"Figure3 is' 'a, topplar'tyiewgoftheauxiliary bumperprovided at e'ac hfe'mlofthefcart- 1clratvbar nemberf; and o. p 3 I "separzigte'auxiliiiry drewbar and hasits outer end positionediabove the, ili'ary member is' ltransin ittedito"the jdtf iwbar,

outerendiof thefcontinuousdrawban,"'A'pin member, v, is passed throughan eyeiiiiithefanixiliatry;v 9*"lngtheidrawing Q designates emine'carofg 1 clr a w bbsvr, throughef'linkpositionedlbetween' any-usual-orpreferred construction having .drawbar, I and then through thecont-iriuous'g bottom 4;. :E'Xteiiding along; the bottom in} I drewbarIr1i1se, when 'the carsarej jeminedfiside the ca-ris aeontinuous drawbarmember it together this linkprysfthefupper or'auxiliery' 5; the outerend portionsfi of Which project drawb'ar member u-p-,Fde forming-it;requiring beyond the endsfofthe' earlaridfextendimder i thecustomary-bumpers? Whichfitss1idab1y 5 1 the auxiliaryor' upper udrawbarm'emb'er has )v to eaeh enclofthe continuous dre vvloar,nieni-.1

bee'n' permanently" riveted t0 thejc'ontinu o'lis berfisaii auxiliaryflrelwbar membershaviriga v 35. straightened or; Where itfis-neeessaryt0, fret- (ThisVeouplirrgpi r is adapted to th drawbgir' member; and finerdertol removethe 1 an inner portion? 8%Whi ch rests v oil "top ofthe3o auxiliarydrawbar member ithasbeen 'neceS- continuous clrawbarg;and'an'iouterterminal, sary to cut away apor'ti'onoftliefloorfofthe portionSfgwhichxis spaeed-above the bumper car, out oil the rivet heads aiithen retrieve? 7. ;;Pa'ssi1i3 through thel termifia'l portion 8? theauxiliary drawbar j 1' arid through theleirdlportiou' 6 of the COIifiiIIi-h 'After'pthe"'auxillary .drfawberl hesbeenuousclrawbarvrnember e-1-coup1i1ngtpi place one witha ew-(me, f'it'isj ineontienientf arouplirig l'iukfindieeted liueh in'llir'i'es-a'tm. jto" again rivet th fl lxiliaiy' 'ditt wbal" Bethe/I 7 Q 111 thewpa-rticulzir form oftheiriifentiori'l' continuous"'drawbirr It has}beenproposedshown, the inner portion S of the auxiliary" to use bolts andnuts in p l.'iee*ofriyets-, butdrawbargmemhe'r 8 is'providedtwith-a.l'ongi Where this hasi'befi 10118 and a p i g t a tudin ilyixtendinerslt11am 1'awit tsmeuoiy i 45 Aceordiiig to the presentinVentiontherecarriecl'j'oIiYth-e eontinuo s' drawber jn ember, v

I be P finfth m b have spaced openingsgl2 y Passingi-through the;-worked loose on the-bolts' andlthe auxiliary tQPGIIiHgSl-Qgregbiolts;1'3"h ying; ts onitheiff H I 'dmwbar eventually r h s91 lower d Ql WjIfihe,carfioorms illustrated,

cuts them off. I 1 these nuts being readily accessible, 'Rigidly" 95 I Iis provided a'eonstruction means ofwhich I is an abutment orfkey let. Inthe preferred I Y the pulling strain is transrriittedtthrough; formofmyinvention thislkey l 'isj of the rivets or the like, lout whereinit] is possible ltyp'eshown in 'Figp' t having two'exterisions p I toremove the vauxiliary drawbar and .-re 14 thereon which.passfthrough thee0ntinu-, 10

Q place it very quickly and'easily'and WithOut" ous ura xi ber member 5endarerivetecl over;

on the underside of the continuous drawbar. The key 14 is of such lengththat it fits in the slot 11 in the auxiliary drawbar 8.

In this arrangement the bolts 13 merely serve to hold the auxiliarydrawbar clamped to or in position on the continuous drawbar 5, while theactual pull or strain is transmitted through the abutment 1d. If for anyreason it is necessary toremove or replace the auxiliary drawbar 8, itis merely necessary to remove the nuts from the bolts 13, after whichthe auxiliary drawbar can be readily lifted 0h. The abutment 14: entersthe slot 11, but it does not serve in any way to clamp the auxiliarydrawbar to the continuous drawbar. However, since the member 14 isrivete'd or otherwise rigidly carried on the continuous drawbar, thereis no opportunity for play to develop even though the nuts on the bolts13 might work loose, and the strain and pull is always transmittedthrough the rigid key or abutment l l.

' It will be obvious that the key and slot arrangement may be otherwisearranged to secure the same efiect, the invention not being confined tothe particular arrangement herein specifically described. The inventionfur thermore permits the holes for the bolts 13 to be relatively largeand loose, permitting the easy insertion and removal of these boltsbecause none of the pull endwise need be transmitted through thesebolts. The bumper member 7 which is of channel shape serves to protectthe end of the bottom 4 from abras sion and to distribute any impactover the entire surface of the car body covered by the bumper. -Thebumper also serves the function of preventing the end portions oi themain drawbar 5 from being distorted by the various stresses and strainsto which it is subjected. In devices of this class hitherto made, thebumper has also served to transmit tension strains either directly tothe main drawbar or to the floor memberf In this invention the bumperdoes not serve any such be made within the contemplation of my inventionand under the scope of the following claims.

I claim:

1. A mine car comprising a body having a bottom and a main drawbarextending along the bottominside the car and projecting beyond theopposite ends thereot, a bumper on each end of the car and slidablyembracing the end of the drawbar, an auxiliary drawbar having anupwardly bent outer end portion positioned over the'projecting endportion of said main drawbar and having an inner end portion resting ontop of the main drawbar inwardly from the bumper, and means spacedinwardly from the bumper connecting the auxiliary drawbar and the maindrawbar, said means comprising spaced bolts and nuts passing looselythrough the main and auxiliary drawbars and constituting clamping meansfor the main and auxiliary drawbars, and a cooperating key and slotarrangement in the main and auxiliary drawbars also positionedrearwardly of the bumper for transmitting stresses and strainsfrom thea-uxil iary to the main drawbar, the relation of the bumper and drawbarbeing such that impacts on the bumper are not transmitted to theconnecting means between the main and auxilk iary drawbars.

2. A mine car comprising a body having a bottom and a main drawbarextending along the bottom inside the ear and projecting beyond theopposite ends thereof, a bumper on each end of the'car and slidablyembracing the endof the drawbair, an auxiliary drawbar having anupwardly bent outer end portion positioned over the projecting endportion of said main drawbar and having an inner end portion resting ontop of the main drawbar inwardly from the bumper, and means spacedinwardly from the bumper connecting the auxiliary drawbar and the maindrawbar, said means comprising spaced-bolts and nuts passing looselythrough the main and auxiliary drawbars and constituting clamping meansfor the main andauxiliary drawbars, a key consisting of a body portionhaving lugs thereon, which lugs pass through openings in the maindrawbar and project beyond the projecting port-ions being upset so as torivet the key to the main drawbar, a cooperating slot in the auxiliarydrawbar, the said key and slot arrangement being positioned rearwardlyof the bumper for transmitting stresses and strains from the auxiliaryto the main drawbar, the relation of the bumper and drawbar being suchthat impacts on the bumper are not transmitted to the connecting meansbetween the main and auxiliary drawbars.

In testimony whereof I have hereunto set my hand.

ALBERT GOLETZ.

